nippert



W. NiPPERTl SCREEN 0R STORM WlND-OW FASTENER. APPLICATION man MAY 29,:919.

mem@ me, 30, 1919.

into place from the outside, and finally the buttons 13 are applied tothe screws l() and turned thereon until they contact withV the sash S.If the latter be accurately tted to the window as seen in Fig. l, suchcontact of the inner face 17 of the button` with the outer edge of thesash will occur at a time when said face also contacts with the outerface 8 of the ear'; but if the sash be somewhat thicker as seen in Fig.2, the but ton will contact with the sash before it touches the ear. Inany event the necessity for having the button appreciably larger thanthe ear is now apparent, because although the sash can be put up betweenor taken down from between the fasteners when the buttons are not ontheir screws, the buttons when applied should be amply large to projectwell over onto the sash frame S. Therefore, it is preferred that thescrew project from the ear in a plane beyond that which the plate lwould occupy if projected, and also that the button be larger than theear for the reasons dcscribed. Also the button should have flat faces sothat when screwed home it will not injure the woodwork.

If it be the custom of the householderto put up a storm sash' duringcold weather, in the spring he can remove the sash and the fasteners. Orit may be that he will remove the sash and replace it with a screen, andin that case the same fasteners may be employed to hold the screenframe. Or, it may be that he puts up a screen in warm weather and has nostorm sash, and in that event the screen and the fasteners will beremoved in the fall and replaced in the spring. It is not necessary thatany particular set of fasteners be applied to a particulel' Window or toa particular sash, but in, order to ada-pt the fasteners to cas-ings ofvarious thicknesses it may be well to nr he them in sizes wherein thedistance betr-J the spur 3 and the inner face 7 of the ear will differ,being a shade over an inch for a casing one inch thick, a shade over aninch and a quarter for a casing one and quarter inches thick, and so on.

Having thus described the invention, will-rat is claimed as new is:

l. A screen fastener comprising ay plate bent into substantially Ushape, a screw pro-- jecting rigidly from one arm of the j erpendicularto its threaded on the screw and of a size tc er:n tend across theprojected plane of the body of the U.

2. A screen fastener comprising a piate bent into substantially shape, ascrew projecting rigidly from one arm ,of the L? and fully oi'set out ofthe projected plane of the body of such U, and a button threaded on thescrew and milled on its edge.,

3. A screen fastener comprising a plate provided at one end with adriving spur, and bent at its other end into a thin, square ear havingflat faces at right angles' to the plane of the plate; a screwprojecting idly from the center of and perpcndicui to said ear andwholly offset out o'l projected plane of said plate; and a br threadedon the screw, its body bein preciably larger than said ear and its fiat,all for useas described.

In testimony whereof i aliir my signature JOHN w. Nirrser. a..

at i.'

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